Improvement in doors for openings in glass screens



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Doors forflpenings in Glass Screens.

Patented March3..1a74.

UNITED STATES PATENT OFFICE.

WILLIAM TUNSTILL, OF BROOKLYN, E. D., NEW YORK.

IMPROVEMENT IN DOORS FOR OPENINGS IN GLASS SCREENS.

Specification forming part of Letters Patent No. [48,153, dated March 3,1874; application filed August 26, 1873.

provement in Doors for Openings in Glass and other Screens, of which thefollowing is a specification:

Openings are often made in glass and wire screens, through whichpayments are made, and at such opening a plate ofglass or slab of stonehas been inserted in a horizontal position to form a shelf or rest. Theplate has been usually fastened in wooden ledges, so as to preventbreakage.

My invention relates to an improved frame of metal that is inserted intothe screen, and carries a door adapted to receive a glass or otherfilling; and in this frame are ledges for the shelf of plate-glass orother material to rest upon, and the same is secured by a blocking-piece inserted into a recess in the frame and clamping the glass toplace.

In the drawing, Figure 1 is an elevation of the door, frame, and shelf,the parts at one side being in section; and Fig. 2 is a vertical sectionof the door and shelf.

The frame a is made of the desired size and shape. It has a flange, 1,that rests against the surface of the glass 1), or other materialforming the screen. The rim 2 of this frame a forms a complete andsmooth inclosure of the edge of the screen, and becomes the boundary ofthe frame internally. The clamping-frame c is of a size and shapeinternally to correspond with the outside of the rim 2 of the frame a,and this frame 0 is secured to the frame a by the screws 6, and theedges of the glass or other screen I) are clamped firmly between 1 andc. When the screen is of glass, a strip of paper" may intervene betweenthe metal of the frame and the glass, to prevent unequal pressure on thesame from inequalities in the casting. This mode of securing the frameto the screen is to be distinguished from the frames that are providedwith holes for the ends of wires to pass into, or in which a groovedwooden frame is affixed in the glass. The door-frame f is attached tothe frame a by held together by screws.

hinges g, and this frame is made double, so that the glass or othermaterial that is used to fill the frame may be introduced between theframe f and clamping-rin g a, and the parts are There is a bolt, catch,or lock, is, of suitable construction, provided for holding the doorwhen closed. Sufficient space is left beneath the door f, between thatand the frame a, for the introduction of a glass or other plate, Z, thatforms a shelf or rest. The same rests upon the brackets or supports n ateach angle of the frame a, and in the upright portions of the said framea, at the angles thereof, recesses are formed for the reception of theblocking-pieces o 0 that enter said recesses, and are form ed slightlytapering, so that, when driven into place, the bottom of theblockingpiece rests upon the glass, and the top against the under sideof the recess in the frame, and the blocking-piece is notched at itsupper edge to prevent movement endwise.

By this construction the plate of glass is held firmly in place againstany tipping or sliding movement, and, when desired, can be easilyremoved or altered in position.

I claim as my invention- 1. The frame a, with the flange 1 and rim 2 andthe clamping-frame o, in combination with a door connected to the saidframe, substantially as and for the purposes set forth.

2. Aswinging door made of a double frame to receive a plate of glass orother material, in combination with the doublesurrounding frame screwedtogether to clamp the glass plate or other article forming the screen,substantially as set forth. I

3. The brackets a, cast upon the frame a, and receiving the plate orshelf 1, in combination with the blocking-pieces o 0 that are enteredabove the plate into recesses in the frame a, as and for the purposesset forth.

Signed by me this 20th day of August, 1873.

VILLIAM TUNSTILL.

Witnesses Gno. T.P1NGKNEY, Guns. E. SMITH.

